How to Fill Out Forms on Websites with AppleScript

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In a previous tutorial we covered how to use AppleScript to automate navigating to a web page. Now we are going to learn how to automate putting information into forms. Using this information along with what we learned in clicking buttons on a web page , we can perform an automated search or automatically login to a website! For this first example we are going to automate a search in Google.

Before proceeding please read clicking buttons on a web page. This will be very helpful in understanding what is going on here.

First thing is first, go to the web page that you need to fill out a form for…in this case we are using while using the Google Chrome browser.

Screen Shot 2014-12-09 at 11.07.04 AM


Next we are going to right click on the part of the form that we would like to fill out, and click inspect element…

Screen Shot 2014-12-09 at 11.08.03 AM


This will split your window into an upper half with the website, and the bottom half that displays the source code.

Screen Shot 2014-12-09 at 11.09.51 AM

We are going to now look at the highlighted part of the code and search for anything that we can use to identify the form we want to enter our text into.

Screen Shot 2014-12-09 at 11.10.46 AM

We want to look inside of the <input> tag to find either something that says “id”, “class”, or “name”. In this case we have all three!


Inputting values into a form using ID


Screen Shot 2014-12-09 at 11.18.30 AM

We are going to specifically look at the part of the code inside of the <input> tag that says id=”lst-ib”…

Next we enter the following code into our AppleScript editor. This code is a function that we can call at anytime in our script.

to inputByID(theId, theValue) -- creates the function

 tell application "Safari" -- tells AppleScript to use Safari

do JavaScript "  document.getElementById('" & theId & "').value ='" & theValue & "';" in document 1 -- gets the ID that we specified and then inputs the value we specified into the  ourform

 end tell -- stops using safari

end inputByID --marks the end of the function


To call this function, or to use it when we want we use the following code:

inputByID("lst-ib", "how to peel a banana")

Which when run will produce the result…Screen Shot 2014-12-09 at 11.23.25 AM


Inputting values into a form using Class


This time we are going to look at the Class attribute inside of the <input> tag.

Screen Shot 2014-12-09 at 11.32.32 AM

As you can see we will be using “gsfi” as our class identifier.


Now we enter this slightly changed code into our AppleScript editor:

to inputByClass(theclass, num, theValue)

tell application "Safari"

do JavaScript "

  document.getElementsByClassName('" & theclass & "')[" & num & "].value ='" & theValue & "';" in document 1

end tell

end inputByClass

And to call the function, we use the following code:

inputByClass(“gsfi”, 0, “how to eat a grape”)

The first part, the “gsfi” is the Class Name we found in our code. The last part is the value we want to enter into the form. But what is that 0 in the middle? That is how Applescript determines which instance of the Class to put the information into!

On pages with a single form, this will most likely be 0, however if there are several lines in your form you may have to adjust this number. Trial and error is the least complicated way to figure out what number to place here. If you need more instructions on how to use this number please check read the clicking buttons on a web page tutorial.

Inputting values into a form using Name

Just as above we are going to find the attribute in the code that says “Name”. In this case the Name of this element in this form is “q”.

Screen Shot 2014-12-09 at 11.39.40 AM

Now we input this code into our Applescript editor:

to inputByName(theName, num, theValue)

tell application "Safari"

do JavaScript " 

  document.getElementsByName('" & theName & "')[" & num & "].value ='" & theValue & "';" in document 1

end tell

end inputByName

And we call it in our script with…

inputByName("q", 0, "how to peel a bananas")

Just like above we need to figure out which instance of the Name to use in order to fill out the middle “num” value in our function.

Inputting values into a form using Tag Name

Lets say you are working on a form that has an input with no id, no class, and no name…How would you input your text then? By telling Applescript to look up the Tag name of <input>.

Enter the following code into your AppleScript editor:

to inputByTagName(thetagName, num, theValue)

tell application "Safari"

do JavaScript " 

  document.getElementsByTagName('" & thetagName & "')[" & num & "].value ='" & theValue & "';" in document 1

end tell

end inputByTagName

Then yo call the function use…

inputByTagName("input", 3, "How to Peel The Bananas")

In this case the middle “num” parameter in our function inputByTagName(thetagName, num, theValuehas changed from 0 to 3. This is because there are 3 elements that have the tag <input> before this one. As with inputting by class and name, you will have to adjust this middle number until your code works.

Remember… 0 is the first instance of an element that has the input tag, 1 is the second, 2, is the third, etc…

NOW if you combine this script with the tutorial on clicking buttons on a web page, you can perform an automated search or automatically login to a web page using AppleScript!


3 Responses to “How to Fill Out Forms on Websites with AppleScript

  • Thank you for your articles.
    I use this article to make my own AppleScript.

  • Hey, thanks for these tutes, they are really useful. ApArt from clicKing buttons and entering text into an OnLine fOrm, would it be Possible for an applescriPt/javascrit to select an option from a drop-down menu?

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